@Starlujan702 @Jones68 as a guy, I don't think I'm qualified to answer that question. But I am curious, is there actually a market for women's used undies? You see as a guy if another guy wore a pair of underwear then I'm not letting them any where near my stuff. I don't care if they've been washed 100 times! Is it different with women? I'm not trying to an a$$, I'm genuinely curious!
If you are attempting to sell used/worn panties marketed to men (for fetish/carnal desires), many of the free webcam sites like MFC/Chaturbate will work as advertisement/marketing platforms, but most of your potential customers will want some sort of visual interaction (clothed will more than suffice) prior to purchase.
There are more than a few women that sell their worn panties/socks/yoga pants using IG as well.
@Woodguychris I asked my wife. She says she wouldn’t buy used panties. Now she’s asking me what I’m looking at. I just laughed at her and couldn’t stop. I handed her the iPad but she just laughed at me and walked away. She didn’t want to know. Called us dogs.
On IG, users cannot blatantly market or advertise, but you are allowed to include a link in your BIO, which is how users are able to sell their "used items"/services/etc, in addition to endorsing products. It is a lucrative underground economy for those who are creative and/or have the knack for the hustle.